<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>2_元素阴影</title>
    <style>
        div {
            width:300px;
            height:100px;
            background-color: #62B5EC;
            border-radius:50px;
            /*元素阴影：x轴偏移量 y轴偏移量 羽化值 阴影扩展范围 阴影颜色*/
            box-shadow: 5px 5px 5px 5px gray;
        }

    </style>

</head>
<body>
<div></div>
</body>
</html>